<!--
 * @Author: wwssaabb
 * @Date: 2021-01-23 16:44:09
 * @LastEditTime: 2021-11-17 11:15:48
 * @FilePath: \echarts_demoe:\myProject\demo\canvas_demo\index.html
-->
<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <style>
    * {
      padding: 0;
      margin: 0;
      user-select: none;
    }

    body {
      width: 100vw;
      height: 100vh;
      overflow: hidden;
      display: flex;
      justify-content: center;
      align-items: center;
      background-color: #000;
    }

    .wrap {
      box-sizing: border-box;
      -moz-box-sizing: border-box;
      width: 40vw;
      height: 40vw;
      padding: 3vw 0 0;
      border-radius: 2vw;
      border: 0.05208vw solid #fff;
      display: flex;
      flex-direction: column;
      justify-content: flex-start;
      align-items: center;
      transition: 1s;
      overflow: auto;
    }

    .wrap::-webkit-scrollbar {
      display: none;
    }

    .wrap:hover {
      animation: blink_bs 2.5s linear infinite;
    }

    @keyframes blink_bs {
      0% {
        box-shadow: none;
      }

      50% {
        box-shadow: 0 0 1.2vw rgba(255, 255, 255, .5);
      }

      100% {
        box-shadow: none;
      }
    }

    .btn {
      position: relative;
      width: 70%;
      height: auto;
      padding: .52083vw 1.04167vw;
      margin-bottom: 3vw;
      display: flex;
      justify-content: center;
      align-items: center;
      font: 1.56250vw/2.08333vw fantasy;
      font-weight: bold;
      letter-spacing: .10417vw;
      color: #000;
      border-radius: 1vw;
      cursor: pointer;
      background-image: linear-gradient(90deg, #6ebbff, #b696d1, #df688a, #b696d1, #6ebbff);
      background-size: 400%;
      flex-shrink: 0;
    }

    .btn::after {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      bottom: 0;
      border-radius: 1vw;
      background-size: 400%;
      filter: blur(.52083vw) contrast(5);
      z-index: -1;
    }

    .btn:hover {
      color: #fff;
      animation: moveX 15s linear infinite;
      text-shadow: 0 0 .52083vw #000;
    }

    .btn:hover::after {
      background-image: linear-gradient(90deg, #749fc5, #a875d4, #ff8bac, #a875d4, #749fc5);
      transition: .5s;
      animation: moveX 15s linear infinite;
    }

    @keyframes moveX {
      0% {
        background-position: 0;
      }

      100% {
        background-position: 400%;
      }
    }
  </style>
</head>

<body>
  <div class="wrap">
  </div>


  <script>
    let arr = [
      '2048',
      'ball_connect',
      'clock',
      'drawing_board',
      'fireworks',
      // 'flash',
      'gobang',
      'scratch_card',
      'snake',
    ]
    let wrap = document.getElementsByClassName('wrap')[0]
    let btnArr = document.createDocumentFragment()
    arr.forEach(a => {
      let btn = document.createElement('div')
      btn.className = "btn"
      btn.innerText = a
      btn.addEventListener("click", () => {
        location.href = './demo_items/' + a + '.html'
      })
      btnArr.appendChild(btn)

    })
    wrap.appendChild(btnArr)
  </script>
</body>

</html>